Abstract
The Suzhou Creek Sluice is currently the largest underwater plain gate in the world, with a single span of 100 m. It is located in a tidal estuary at the junction of the Huangpu River and Suzhou Creek in Shanghai, China. In this study, physical and 2D vertical mathematical models were used to investigate and distinguish the mechanism of siltation downstream of an underwater plain gate from that of other gates types. According to quantitative data obtained by site investigation and the application of the physical hydrodynamic models, it was found that the characteristics of the tidal estuary as well as the fact that the sluice span is equal to the creek width are the major reasons contributing to siltation. A possible desiltation treatment system is proposed for the underwater plain gate. The system includes selection of a suitable location that allows the determination of a reasonable top elevation of the sluice floor, reserving sufficient space under the gate to accommodate siltation, setting up a mechanical desiltation system, and flushing silt along with overflow over the top of the gate. Furthermore, on-site hydraulic silt flushing experiments and a topography survey were conducted. These results showed that the measurement system is effective, and by maintaining this scheduled operation once a month, the downstream riverbed has been maintained in a good condition.
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Adams, C. E., Xu, L., Walker, N. D. and Murray, S. P., 1997. Flow and sediment transport in a shallow bar-built estuary, northern Gulf of Mexico, J. Coast. Res., 13(1): 164–180.
Fenies, H. and Tastet, J. P., 1998. Facies and architecture of an estuarine tidal bar (the Trompeloup bar, Gironde Estuary, SW France), Marine Geology, 150, 149–169. Doi:10.1016/S0025-3227(98)00059-0.
Fu, G., Li, J. F., Zhu, G., Yu, Z. Y. and Xu, H. G., 2007. A review of sediment siltation downstream tidal barriers and the measures to reduce siltation, Transactions of Oceanology and Limnology, (z1): 223–231.
Ghosh, L. K., Prasad, N., Joshi, V. B. and Kunte, S. S., 2001. A study on siltation in access channel to a port, Coast. Eng., 43(1): 59–74. Doi: 10.1016/S0378-3839(01)00006-0.
Ji, Y. X., Lu, Y. J. and Hu, X., 2002. Research on the measures of anti-scour and silt relief by using double “T”-shape dams in the downstream of surface drainage sluice at the outlet of strong tide river, China Rural Water and Hydropower, (4): 37–39. (in Chinese)
Ji, Y. X., Lu, Y. J., Chen, W. W. and Rao, J. J., 2007. Design characteristics of the Suzhou Creek Sluice project, Advances in Science and Technology of Water Resources, 27(z1): 5–7. (in Chinese)
Jia, J. J. and Lu, W. J., 2000. Physical modeling of localized scour for the Yangtze Estuary Waterway Improvement Project, Phase I, China Ocean Eng., 14(4): 473–484.
Jin, Y. H. and Shen, H. T., 1991. Scour and silting characteristics downstream of sluice at tidal estuary in China, Journal of Sediment Research, (4): 59–68. (in Chinese)
Li, D. M., Fan, Y. and Chen, H. Z., 2005. Hydrodynamic force and sediment disposal down floodgate near estuary, Journal of Tianjin University Science and Technology, 38(9): 817–823. (in Chinese)
Li, J. F. D., Shen, H. T., He, Q. and Zhang, L. L., 2000. Sediment deposition and resuspension in mouth bar area of the Yangtze Estuary, China Ocean Eng., 14(3): 339–348.
Liang, Y. L., 2001. Analysis of the feasibility of Yongdingxin River silt-washing by tide, Design of Water Resources & Hydroelectric Engineering, 20(3): 14–17. (in Chinese)
Liu, R. D., 1988. The process of shoaling on downstream basin of the gate in Jinhui Gang, Journal of Sediment Research, (4): 30–39. (in Chinese)
Lu, C. G., Wu Z. H., He, G. F., Zhu, J. and Xiao, G. Y., 2010. Numerical simulation of sediment deposition thickness at Beidaihe International Yacht Club, Water Science and Engineering, 3(3): 313–320.
Lu, P. D., Xu, M., Zhang, J. S. and Lei, Z. Y., 2002. Effect of the twin jetties as a regulating structure at the Tao-er Estuary, China Ocean Eng., 16(2): 219–226.
Lu, Y. J., Liu, H., Wu, W. and Zhang, J. S., 2007. Numerical simulation of two-dimensional overtopping against seawalls armored with artificial units in regular waves, Journal of Hydrodynamics, Ser. B, 19(3): 322–329. Doi:10.1016/S1001-6058(07)60065-1.
Luo, Z. S., 1987. Computation of siltation in dredged channels in estuaries, Journal of Sediment Research, (2): 13–20. (in Chinese)
Malcolm, O. G., Robert, G. B., Tony, J. D. and Swales, A., 2000. Silt and sand transport in a deep tidal channel of a large estuary (Manukau Harbour, New Zealand), Marine Geology, 163, 217–240. Doi: 10.1016/S0025-3227(99)00102-4.
Nguyen, V.-T., Zheng, J. H. and Zhang, J. S., 2013. Mechanism of back siltation in navigation channel in Dinh An Estuary, Vietnam, Water Science and Engineering, 6(2): 178–188. Doi:10.3882/j.issn.1674-2370.2013.02.006.
Song, Z. Y., Wu, T. T., Xu, F. M. and Li, K. J., 2008, A simple formula for predicting settling velocity of sediment particles, Water Science and Engineering, 1(1): 37–43. Doi:10.3882/j.issn.1674-2370.2008.01.005.
Tang, Y. and Wang, H. Q., 2007. A preliminary study on desiltation of Cao’e River Gate in Zhejiang Province, Water Resources and Hydropower Engineering, 38(3): 20–24. (in Chinese)
Wang, X. K., Li, D. X. and Xu, S. T., 2001. Experimental study on sedimentation in excavated trench under the action of tidal flow, Int. J. Sed. Res., 16(2): 184–188.
Wang, H. J., 2002. Scour and silting characteristics downstream of tidal barriers in muddy estuaries and their analytical forecast, China Ocean Eng. 20 (4): 317–326.
Yu, Y. Y., Tang, Z. W. and Lu, X. X. and Yu, Q. W., 2007. Siltation in the lock approach of the Cao’e River, Journal of Sediment Research, (3): 17–23. (in Chinese)
Zhang, J. S., Huang, J. W. and Yang, H., 2004, Silting in the lower courses of tidal sluices in China, China Ocean Eng., 18(1): 137–148.
Zhang, W. Y., 2000. Siltation and its control in downstream tidal gates in north of Jiangsu Province, Journal of Sediment Research, (1): 73–76. (in Chinese)
Zhang, X. N., Yang, H. and Sun, B., 1999. Prediction of siltation in the downstream approach channel of tidal locks, China Ocean Eng., 13(3): 317–326.
Zhu, B. L. and Wang, S., 1995. An analysis on sediment sluicing with agitation in downstream reach of barrage on Haihe Estuary, Journal of Sediment Research, (3): 109–115. (in Chinese)
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Ji, Yx., Yang, F., Zhang, Hy. et al. A siltation simulation and desiltation measurement study downstream of the Suzhou Creek Sluice, China. China Ocean Eng 27, 781–793 (2013). https://doi.org/10.1007/s13344-013-0064-2
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DOI: https://doi.org/10.1007/s13344-013-0064-2